I find that Egyptians often abuse the word تعسف , kind of throwing it about to label whatever decision they may dislike. Maybe I misunderstand its meaning? But I too thought that it meant arbitrary. That word isn't really suitable here, in my opinion. Maybe we could instead use 'out of line'.
If I may improve on Josh's suggestion:
in that you manipulated the truth to inflict harm on others

I find that Egyptians often abuse the word تعسف , kind of throwing it about to label whatever decision they may dislike. Maybe I misunderstand its meaning? But I too thought that it meant arbitrary. That word isn't really suitable here, in my opinion. Maybe we could instead use 'out of line'.
If I may improve on Josh's suggestion:
in that you manipulated the truth to inflict harm on others